AU6672681A - Data transmission - Google Patents

Data transmission

Info

Publication number
AU6672681A
AU6672681A AU66726/81A AU6672681A AU6672681A AU 6672681 A AU6672681 A AU 6672681A AU 66726/81 A AU66726/81 A AU 66726/81A AU 6672681 A AU6672681 A AU 6672681A AU 6672681 A AU6672681 A AU 6672681A
Authority
AU
Australia
Prior art keywords
access device
memory access
signal
peripheral units
signals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU66726/81A
Inventor
Helmuth Kleinert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of AU6672681A publication Critical patent/AU6672681A/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/22—Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/28—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal
    • G06F13/285—Halt processor DMA

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Communication Control (AREA)
  • Multi Processors (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Bus Control (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

A method and a circuit arrangement are disclosed for transmitting binary signals between peripheral units which are connected to one another via a central bus line system. The signal transmission is to take place without the necessity of including a central processor, which is likewise connected to the central bus system. For this purpose, it is provided that signal transmission requests from the individual peripheral units are transmitted to a memory access device which is also connected to the central bus line system and which, in response to the receipt of such transmission request, de-activates the central processor in respect of the transmission of signals to the central bus line system. The memory access device supplies the peripheral units which are to participate in a signal transmission operation with control signals which transform the latter from a starting state into a transmitting state or into a receiving state and then, in alternation with control signals which serve for the output and receipt of signal groups. Following the transmission of the last signal of the number of signals reported to the memory access device in respect of a signal transmission operation, the memory access device supplies the peripheral units with a reset signal by which the same are returned from their transmitting and receiving states into their starting states.
AU66726/81A 1980-01-30 1981-01-29 Data transmission Abandoned AU6672681A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE30033400 1980-01-30
DE3003340A DE3003340C2 (en) 1980-01-30 1980-01-30 Method and circuit arrangement for the transmission of binary signals between terminal devices connected to one another via a central bus line system

Publications (1)

Publication Number Publication Date
AU6672681A true AU6672681A (en) 1981-08-06

Family

ID=6093291

Family Applications (1)

Application Number Title Priority Date Filing Date
AU66726/81A Abandoned AU6672681A (en) 1980-01-30 1981-01-29 Data transmission

Country Status (6)

Country Link
US (1) US4404650A (en)
EP (1) EP0033469B1 (en)
AT (1) ATE8444T1 (en)
AU (1) AU6672681A (en)
DE (1) DE3003340C2 (en)
DK (1) DK40381A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471427A (en) * 1981-12-01 1984-09-11 Burroughs Corporation Direct memory access logic system for a data transfer network
DE3412519A1 (en) * 1984-04-04 1985-10-24 Kraftwerk Union AG, 4330 Mülheim Test head holder for a self-propelled internal pipe manipulator
GB2177873B (en) * 1985-07-19 1989-11-22 Marconi Electronic Devices Communications system
US4979097A (en) * 1987-09-04 1990-12-18 Digital Equipment Corporation Method and apparatus for interconnecting busses in a multibus computer system
US5140680A (en) * 1988-04-13 1992-08-18 Rockwell International Corporation Method and apparatus for self-timed digital data transfer and bus arbitration
US5007012A (en) * 1988-09-09 1991-04-09 Advanced Micro Devices, Inc. Fly-by data transfer system
JP3187525B2 (en) * 1991-05-17 2001-07-11 ヒュンダイ エレクトロニクス アメリカ Bus connection device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623013A (en) * 1969-08-13 1971-11-23 Burroughs Corp Data processing network and improved terminal
US3725871A (en) * 1971-02-11 1973-04-03 Honeywell Inf Systems Multi function polling technique
GB1505535A (en) * 1974-10-30 1978-03-30 Motorola Inc Microprocessor system
US4106091A (en) * 1975-02-18 1978-08-08 Motorola, Inc. Interrupt status indication logic for polled interrupt digital system
JPS5837585B2 (en) * 1975-09-30 1983-08-17 株式会社東芝 Keisan Kisouchi
US4225917A (en) * 1976-02-05 1980-09-30 Motorola, Inc. Error driven interrupt for polled MPU systems
US4090238A (en) * 1976-10-04 1978-05-16 Rca Corporation Priority vectored interrupt using direct memory access
US4174536A (en) * 1977-01-21 1979-11-13 Massachusetts Institute Of Technology Digital communications controller with firmware control
US4145739A (en) * 1977-06-20 1979-03-20 Wang Laboratories, Inc. Distributed data processing system
CA1126362A (en) * 1977-07-21 1982-06-22 George C. Beason Communication system for remote devices
FR2406916A1 (en) * 1977-10-18 1979-05-18 Ibm France DECENTRALIZED DATA TRANSMISSION SYSTEM
DE2846130C2 (en) * 1978-10-23 1982-12-30 Siemens AG, 1000 Berlin und 8000 München Telegraph private branch exchange
DE2853138C2 (en) * 1978-12-08 1980-12-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method and circuit arrangement for the transmission of signals in memory-programmed switching systems
US4240140A (en) * 1978-12-26 1980-12-16 Honeywell Information Systems Inc. CRT display terminal priority interrupt apparatus for generating vectored addresses
US4237535A (en) * 1979-04-11 1980-12-02 Sperry Rand Corporation Apparatus and method for receiving and servicing request signals from peripheral devices in a data processing system

Also Published As

Publication number Publication date
DE3003340C2 (en) 1985-08-22
DK40381A (en) 1981-07-31
DE3003340A1 (en) 1981-08-06
EP0033469B1 (en) 1984-07-11
US4404650A (en) 1983-09-13
EP0033469A1 (en) 1981-08-12
ATE8444T1 (en) 1984-07-15

Similar Documents

Publication Publication Date Title
GB1177588A (en) Data Communication System.
GB1357028A (en) Data exchanges system
AU6672681A (en) Data transmission
KR830008234A (en) Communication Multiplexer with Variable Priority Scheme
JPS5636709A (en) Numerical control system
JPS54112106A (en) Data transmission system
JPS56110125A (en) Data processing device
JPS55147851A (en) Communication controlling system
JPS57141741A (en) Input and output control system
JPS55138141A (en) Printer share mechanism
JPS5644921A (en) Bus control system
JPS5725053A (en) Memory device
JPS56168256A (en) Data processor
JPS56108158A (en) Memory device
JPS53131706A (en) Automatic telephone exchange system
JPS5719828A (en) Data processing equipment
JPS53129905A (en) Information scanning process system
JPS5624846A (en) Data transfer control system between control devices
JPS57147354A (en) Control system for input from plural processing parts to one terminal
JPS57178522A (en) Data processing system
JPS5720855A (en) Transfer device
JPS5617537A (en) Information transmitting system using optical data bus line
JPS5622157A (en) Process system multiplexing system
JPS56115058A (en) Data transmission control system in multidrop system
JPS5567820A (en) Optical bus control unit